Tag
Pressure
Entries tagged pressure.
2 entries
Concept
Pressure from microscopic collisions
Pressure is not a mysterious substance pushing outward, it is the measured average of countless individual molecular collisions transferring momentum to a surface every instant.
8 min
Mental modelThe ideal gas model
Treat gas molecules as tiny, free, colliding points with no attraction between them, and pressure, volume, temperature, and particle count lock together into one simple equation, PV = nRT, that predicts real gas behavior remarkably well until the gas is squeezed cold enough or dense enough to condense.
8 min